An easy care duvet that is excellent value for money perfect all year round a 175 gm duvet for the summer and a 300 gm duvet for in between seasons join the two together to form the winter duvet fastened with ties100 polyester double duvet with hollowfibre silicon for extra comfortan easy care duvet that is excellent value for money perfect all year round a 175 gm duvet for the summer and a 300 gm duvet for in between seasons join the two together to form the winter duvet